`devb-nand-camelot`

Driver for NAND Flash interface

You must be root to start this driver.

Syntax:

devb-nand- "variant" [cam cam_options[,option]...]
                     [nand nand_options[,option]...]
                     [blk io-blk_options[,option]...] &

Options:

Use commas (,) to separate the options.

`cam` options

lun= mask: Enable Logical Unit Number (LUN) scan for the devices specified in mask. The mask is a hex bitmask specifying which IDs to scan for; the default is 0x00.
quiet: Be quiet: don't display any information on startup.
verbose: Be verbose: display full information about units (devices) on startup.

`nand` options

The nand options control the driver's interface to nand flash.

ioport= port

The I/O port of the interface.

erase= [1/2]

Multiple levels of erase:

Avoid factory (early) and inuse (late) bad blocks

Avoid factory (early) bad blocks

raw= numblks

Specify the number of blocks in a raw partition.

verify

Use nand-write verification

`blk` options

The blk options control the drivers interface to the filesystem layer. In particular, the cache= option can be used to control the amount of buffer cache memory allocated for the nand driver.

The blk options control io-blk.so. If specified, they must follow the blk keyword.

Description:

The devb-nand* drivers initialize two distinct partitions; a standard QNX4 filesystem partition, and a raw partition.

The size of the raw partition can be set using the raw= subopt on the command line.The raw partition can be used to store an OS image to be read from an IPL stored on an external EPROM or NOR flash. A system can't boot from NAND directly, because it's not a linear device.

Examples:

Initialize a new NAND flash part:

devb-nand-"variant"  nand erase=2,raw=256 blk cache=128k

Run the driver for an already initialized part:

devb-nand-"variant" nand raw=256 blk cache=128k